What Is The Crystal?
Crystal is a group of Agile development methodologies created by Dr. Alistair Cockburn, which focuses on people and their interaction as they work together. Crystal is known for being a lightweight methodology with minimal documentation, overhead management, and reporting.
The Crystal methodologies include Crystal Clear, Crystal Yellow, Crystal Orange, Crystal Orange Web, Crystal Red, Crystal Maroon, Crystal Diamond, and Crystal Sapphire.
The project environment and team size determine the appropriate methodology to use. For example, Crystal Clear is suited for short-term projects with a few developers, while Crystal Sapphire or Crystal Diamond is used in large projects with potential risks to human life.
The Crystal approach allows for flexibility and adjustability in processes and tools to fit the requirements of each project.